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2007 Mercury Marquis door locks

Tiny
JONESBETTY
  • MEMBER
  • 2007 MERCURY MARQUIS
The door locks, inside lights and rear defroster only work at times. It is getting to where they only work when the car is running and most of the time not then either. What should I look for
Friday, March 13th, 2015 AT 12:30 PM

1 Reply

Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
It might be modules for the lights and doors. So have a pro scan for codes for those. For the defogger check the fuse and relay for corrosion in fuse box under hood it will be marked on cover. Clean the prongs on relay and use dielectric grease on them. That might fix it other than that because it is intermittent a pro will need to look at it.
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Friday, March 13th, 2015 AT 1:18 PM

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